title: Surface sensitive study to determine the reactivity of soot with the focus on the European emission standards IV and VI.
abstract: Diesel soot (Euro IV and Euro VI) was investigated with spectroscopic methods such as near-edge X-ray absorption fine structure (NEXAFS) spectroscopy and X-ray photoemission spectroscopy (XPS). C and O K-edge NEXAFS show that structural disorder on the surface is accompanied by a higher amount of oxygen functional groups. O K-edge NEXAFS and O1s XPS results are discussed with the aim to elucidate the nature of the oxygen surface species. The analysis of the data presented here allows the postulation of a hypothetical structure for soot samples emitted by diesel engines.
authors.affiliation: Department of Inorganic Chemistry, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Berlin, Germany.
authors.forename: Manfred E
authors.initials: ME
authors.lastname: Schuster
authors.forename: Michael
authors.initials: M
authors.lastname: Hävecker
authors.forename: Rosa
authors.initials: R
authors.lastname: Arrigo
authors.forename: Raoul
authors.initials: R
authors.lastname: Blume
authors.forename: Markus
authors.initials: M
authors.lastname: Knauer
authors.forename: Natalia P
authors.initials: NP
authors.lastname: Ivleva
authors.forename: Dang Sheng
authors.initials: DS
authors.lastname: Su
authors.forename: Reinhard
authors.initials: R
authors.lastname: Niessner
authors.forename: Robert
authors.initials: R
authors.lastname: Schlögl
mesh_terms: D005060:Europe; D056951:Photoelectron Spectroscopy; D053260:Soot / Q000737:chemistry* / Q000633:toxicity; D013499:Surface Properties; D013696:Temperature; D001335:Vehicle Emissions / Q000331:legislation & jurisprudence* / Q000633:toxicity; D056928:X-Ray Absorption Spectroscopy
chemical_list: D053260:Soot; D001335:Vehicle Emissions